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| Patents for John Biddis | |||||
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| Picture | Number | Date | Patentee | Title | |
| 16X | Aug. 10, 1791 | J. Biddis, T. Beadwell | Making extract of bark | ||
| 75X | Mar. 31, 1794 | J. Biddis | Improvement in manufacturing paper | ||
| 286X | May 06, 1800 | J. Biddis | Engine for reducing silk, cotton, worsted, cloth, and to their original state to be manufactured | ||
| 360X | Mar. 22, 1802 | J. Biddis | Manufacturing Starch From Potatoes | ||
| 458X | Jun. 04, 1803 | J. Biddis, L.J. Kilborn | Improvement in the method of distilling or making alcohol | ||